Posted by
Message
Cycledude
Member since Jul 2018
884 posts

Why is time important to change motor oil?
I understand the need depends on mileage, but why every year?


fightin tigers
Downtown Prairieville
Member since Mar 2008
59458 posts

re: Why is time important to change motor oil?
Probably some sort of oxidization or similar
This post was edited on 7/22 at 2:21 pm


goofball
Navy Fan
Member since Mar 2015
12534 posts

re: Why is time important to change motor oil?
Engine oil breaks down and gels over time.


Replies (0)
Replies (0)
211
Cypressknee
Member since Jul 2017
767 posts

re: Why is time important to change motor oil?
Moisture.


Replies (0)
Replies (0)
180
OweO
LSU Fan
Plaquemine, La
Member since Sep 2009
95901 posts

re: Why is time important to change motor oil?
Wow....


Replies (0)
Replies (0)
147
Fun Bunch
New Orleans Pelicans Fan
New Orleans
Member since May 2008
82962 posts

re: Why is time important to change motor oil?
quote:

every year?




Replies (0)
Replies (0)
121
billjamin
LSU Fan
Houston
Member since Jun 2019
2123 posts

re: Why is time important to change motor oil?
Modern oils are not nearly as unstable as previous ones. If you use a decent product, as long as you're not going over a couple years, you're fine.

But seriously just drop it every year even if you're not hitting the mileage requirement. The ROI just isn't there to push the limits on a car you drive that little.
This post was edited on 7/22 at 2:26 pm


kjp811
LSU Fan
Denver, CO
Member since Apr 2017
460 posts

re: Why is time important to change motor oil?
quote:

Probably some sort of oxidization or similar



This is the answer. Where ever there is oxygen, oxidation will occur and your motor oil will break down. This is why tires have a shelf life of 6 years regardless of mileage.


Replies (0)
Replies (0)
151
Jor Jor The Dinosaur
LSU Fan
Chicago, IL
Member since Nov 2014
4050 posts

re: Why is time important to change motor oil?
I thought that "they" said every 3 months (or 3,000 miles), which is BS. I guess it's changed to 1 year for high mileage synthetics.

The oil probably breaks down over time. I don't consider the time elapsed when it comes to oil changes, only the mileage since the last one, since I drive enough that it needs to be changed before time would be a factor.

If you have a car that isn't driven frequently, then I can see why it would need to be taken into consideration.


Rando
USA Fan
When IPs were Visible
Member since Apr 2015
22860 posts

re: Why is time important to change motor oil?
quote:

I understand the need depends on mileage, but why every year?


Humidity and fuel dilution.

Modern engines are too well sealed up. Crankcase pressure is rerouted into intakes rather than venting. This leads to a build up of moisture if not frequently run to operating temp.

A lot of cold starts leads to a lot of fuel in the oil.

Fuel is a solvent.


TD SponsorTD Fan
USA
Member since 2001
Thank you for supporting our sponsors
Advertisement
White Bear
USA Fan
NWLA
Member since Jul 2014
7993 posts

re: Why is time important to change motor oil?
quote:

Why is time important to change motor oil?
Because the folks selling you oil made that rule.


Replies (0)
Replies (0)
152
LSUBanker
LSU Fan
Member since Sep 2003
2298 posts

re: Why is time important to change motor oil?
As a young punk a wise old man once told me he changed his oil every 12,0000 miles. Told him he was crazy. I had bought into the "change every 3,000 mile" mantra. I still go every 7,500 tho.


Replies (0)
Replies (0)
42
kjp811
LSU Fan
Denver, CO
Member since Apr 2017
460 posts

re: Why is time important to change motor oil?
quote:


I thought that "they" said every 3 months (or 3,000 miles), which is BS. I guess it's changed to 1 year for high mileage synthetics.


3 month, 3000 miles harkens back to the days of carbureted engines and really doesn't apply anymore. Depending on the driving you to, and the engine you have 5000 to 7500 should be fine for most vehicles and 6 months for conventional, a year for full synthetic.


TU Rob
Atlanta Braves Fan
Birmingham
Member since Nov 2008
11714 posts

re: Why is time important to change motor oil?
quote:

Depending on the driving you to, and the engine you have 5000 to 7500 should be fine for most vehicles and 6 months for conventional, a year for full synthetic.


Yep. All of our Toyotas, whenever you do the reset of the alert, it is 5k miles until the next one.


Replies (0)
Replies (0)
30
TheAlmightySmash
LSU Fan
New Orleans
Member since Jun 2014
5304 posts

re: Why is time important to change motor oil?
I put ~1000 miles a year on a car and get it changed annually. Only because the manufacturer recommends it and the used car buyers will run if you don't have good service records


BobABooey
LSU Fan
Parts Unknown
Member since Oct 2004
9193 posts

re: Why is time important to change motor oil?
quote:

Cycledude

Yeah, okay. Hand the phone back to your husband.

Pics?


Replies (0)
Replies (0)
31
LSUfanNkaty
USA Fan
LC, Louisiana
Member since Jan 2015
8194 posts

re: Why is time important to change motor oil?


Replies (0)
Replies (0)
00
USMEagles
Southern Miss Fan
Member since Jan 2018
7503 posts

re: Why is time important to change motor oil?
I change mine every 3 months. That's only about 1,500 miles, typically. Been thinking about increasing the interval but I guess I'd rather be safe.


billjamin
LSU Fan
Houston
Member since Jun 2019
2123 posts

re: Why is time important to change motor oil?
quote:

I put ~1000 miles a year on a car and get it changed annually

I do this on mine as well, also because it drinks a steady diet of ethanol that tends to pollute the oil a little more than gasoline. I typically end up under it a couple times a year fixing something I broke, so I'll just do it then. I'm not a stickler for keeping track because it hardly ever gets driven.



Replies (0)
Replies (0)
00
billjamin
LSU Fan
Houston
Member since Jun 2019
2123 posts

re: Why is time important to change motor oil?
quote:

I change mine every 3 months. That's only about 1,500 miles, typically. Been thinking about increasing the interval but I guess I'd rather be safe.


You have a better chance of having an engine failure due to the oil change people screwing up than you do from the oil going bad. The more you screw with it, the more chances you have for someone to mess up.


first pageprev pagePage 1 of 4next pagelast page

Back to top

logoFollow TigerDroppings for LSU Football News
Follow us on Twitter, Facebook and Instagram to get the latest updates on LSU Football and Recruiting.

FacebookTwitterInstagram